function addTabs(title, url) {
	if($('#center').tabs('exists', title)) {
		$('#center').tabs('select', title);
		var tab = $('#center').tabs('getSelected');
		$('#center').tabs('update', {
			tab: tab,
			options: {

			}
		});
	} else {
		$('#center').tabs('add', {
			title: title,
			selected: true,
			closable: true,
			style: {
				"padding": "10px"
			},
			content: '<iframe src="' + url + '" height="95%" width="100%" scrolling="auto" frameborder="0" ></iframe>'
		});
	}
}